sysb.co.jp - robtex.com

sysb.co.jp

DNSSEC⚠️ Not signed
A183.90.248.3🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.
PTRsv302.sixcore.ne.jp
NSns1.sixcore.ne.jp ⭐
A202.226.36.232🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.sixcore.ne.jp
NSns2.sixcore.ne.jp
A202.226.39.241🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns2.sixcore.ne.jp
NSns3.sixcore.ne.jp
A202.226.37.248🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.sixcore.ne.jp
MXsysb.co.jp ⭐
A183.90.248.3🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.
PTRsv302.sixcore.ne.jp
TXTgoogle-site-verification=yYFDI_bFyj374vrftjfWdyWPoemuQ-Sq6UVkC236-Ac
TXTv=spf1 +a:sv302.sixcore.ne.jp +a:sysb.co.jp +mx include:spf.sender.xserver.jp...
TXTgoogle-site-verification=vvZd28Jrn_atBeA_cMSpkfGgL1-aRl8uWM0XBC-mV00
SOAns1.sixcore.ne.jproot@sv0.sixcore.ne.jp serial=0

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (58/100)

MX for

sysb.co.jp

Same first word

sysb.ee
sysb.jp
sysb.com
sysb.co.jp
sysb.org
sysb.info
sysb.it
sysb.de

Similar names

bsys.de
ysbs.com
ybss.jp
byss.com.pl
bsys.ch
bsys.eu
sbys.or.jp
byss.de
bsys.co.uk
sybs.com
ybss.org
sybs.com.br
bsys.rs
byss.org
bsys.se
sybs.co.uk
bsys.mx
byss.es
sbys.ca
byss.mobi
yssb.kr
ybss.co.uk
sbys.org
bsys.it
ybss.top
byss.me
bsys.dk
yssb.gov.ng
byss.no
sbys.com
sbys.org.cn
ssyb.net
sbys.net
sbys.nl
bsys.com
byss.pl
bssy.co.uk
sybs.org
ssby.org
byss.net
ysbs.org
bsys.bio
byss.com
bsys.com.br
bsys.cz
bsys.hu
bssy.com
bsys.net
bsys.fr
sbys.ru
bssy.net
bsys.io
yssb.net
sybs.ru
byss.cn
byss.uk
sybs.net
yssb.org
sbsy.com.cn
sbys.info
ssby.net
ysbs.or.id
sbys.jp
byss.tv
bsys.org
ybss.com
sbsy.de
byss.se
bsys.be
yssb.com
byss.eu

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSns1.sixcore.ne.jpns2.sixcore.ne.jpns3.sixcore.ne.jpname.technowave.ad.jpns.technowave.ne.jpMXsysb.co.jpmail.sysb.co.jpmx-0.aams6.jpmx-1.aams6.jpmx.aams6.jpA183.90.248.3202.211.39.44210.226.37.45
○NSname.technowave.ad.jp2015-07-08 → 2017-04-03 · 4 obs
● 2015-07-08 17:41:58
● 2017-04-03 12:38:20
○ 2026-03-26 13:37:20
○ 2026-03-27 16:29:26
○NSns.technowave.ne.jp2015-07-08 → 2017-04-03 · 4 obs
● 2015-07-08 17:41:58
● 2017-04-03 12:38:20
○ 2026-03-26 13:37:20
○ 2026-03-27 16:29:26
●NSns1.sixcore.ne.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2017-04-03 12:38:20
● 2026-03-26 13:37:20
● 2026-03-27 16:29:26
●NSns2.sixcore.ne.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2017-04-03 12:38:20
● 2026-03-26 13:37:20
● 2026-03-27 16:29:26
●NSns3.sixcore.ne.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2017-04-03 12:38:20
● 2026-03-26 13:37:20
● 2026-03-27 16:29:26
○MXmail.sysb.co.jp2015-07-08 → 2015-09-19 · 4 obs
● 2015-07-08 17:41:58
● 2015-09-19 04:46:32
○ 2015-12-16 16:56:04
○ 2026-03-27 16:29:26
○MXmx-0.aams6.jp2015-12-16 → 2017-04-03 · 5 obs
○ 2015-09-19 04:46:32
● 2015-12-16 16:56:04
● 2017-04-03 12:38:20
○ 2026-03-26 13:37:20
○ 2026-03-27 16:29:26
○MXmx-1.aams6.jp2015-12-16 → 2017-04-03 · 5 obs
○ 2015-09-19 04:46:32
● 2015-12-16 16:56:04
● 2017-04-03 12:38:20
○ 2026-03-26 13:37:20
○ 2026-03-27 16:29:26
○MXmx.aams6.jp2015-12-16 → 2017-04-03 · 5 obs
○ 2015-09-19 04:46:32
● 2015-12-16 16:56:04
● 2017-04-03 12:38:20
○ 2026-03-26 13:37:20
○ 2026-03-27 16:29:26
●MXsysb.co.jp2026-03-26 → 2026-03-27 · 3 obs
○ 2017-04-03 12:38:20
● 2026-03-26 13:37:20
● 2026-03-27 16:29:26
●A183.90.248.32026-03-26 → 2026-03-27 · 3 obs
○ 2017-04-03 12:38:20
● 2026-03-26 13:37:20
● 2026-03-27 16:29:26
○A202.211.39.442015-07-08 → 2015-09-19 · 4 obs
● 2015-07-08 17:41:58
● 2015-09-19 04:46:32
○ 2015-12-16 16:56:04
○ 2026-03-27 16:29:26
○A210.226.37.452015-12-16 → 2017-04-03 · 5 obs
○ 2015-09-19 04:46:32
● 2015-12-16 16:56:04
● 2017-04-03 12:38:20
○ 2026-03-26 13:37:20
○ 2026-03-27 16:29:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpd.dns.jp, f.dns.jp, b.dns.jp, g.dns.jp...-
sysb.co.jpns3.sixcore.ne.jp, ns1.sixcore.ne.jp, ns2.sixcore.ne.jp3 records

✅ Authoritative Response

Server:202.226.36.232

NS records: ns3.sixcore.ne.jp, ns1.sixcore.ne.jp, ns2.sixcore.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysb.co.jp (unsigned zone)

⏱️ Timing

Total: 551ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.248.3
NS3ns1.sixcore.ne.jp, ns2.sixcore.ne.jp...
MX1sysb.co.jp (pri: 0)
TXT3google-site-verification=vvZd28Jrn_atBeA, v=spf1 +a:sv302.sixcore.ne.jp +a:sysb.co...
SOA1ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp)

Analysis

Mail Server Role

For sysb.co.jp, the mail server is sysb.co.jp.

IP Addresses

sysb.co.jp resolves to one IP number: 183.90.248.3.

other host names including yuso.co.jp, pathway.co.jp, venturebank.co.jp, cl20.jp and yoxo-o.jp share IP numbers with sysb.co.jp.

Name Servers

sysb.co.jp is delegated to three name servers ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.

sysb.co.jp at least partially shares name servers with other domains, for instance adv.co.jp, cleverlyhome.com, e-takumi-sys.com, agateconsulting.jp and plumshell.com.

Host names with one IP number: ns1.sixcore.ne.jp points to 202.226.36.232; ns2.sixcore.ne.jp points to 202.226.39.241; ns3.sixcore.ne.jp points to 202.226.37.248.

Mail Servers

sysb.co.jp is served by a single mail server, sysb.co.jp.

sysb.co.jp resolves to IP 183.90.248.3.